42311320477 has 2 divisors, whose sum is σ = 42311320478. Its totient is φ = 42311320476.

The previous prime is 42311320409. The next prime is 42311320483. The reversal of 42311320477 is 77402311324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29344032601 + 12967287876 = 171301^2 + 113874^2 .

It is a cyclic number.

It is not a de Polignac number, because 42311320477 - 2¹¹ = 42311318429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42311300477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21155660238 + 21155660239.

It is an arithmetic number, because the mean of its divisors is an integer number (21155660239).

Almost surely, 2^42311320477 is an apocalyptic number.

It is an amenable number.

42311320477 is a deficient number, since it is larger than the sum of its proper divisors (1).

42311320477 is an equidigital number, since it uses as much as digits as its factorization.

42311320477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 34.

The spelling of 42311320477 in words is "forty-two billion, three hundred eleven million, three hundred twenty thousand, four hundred seventy-seven".